Compressor for refrigerating plants



May 4 1926. 1,583,156

1 C. E. JEFFERS COMPRESSOR FOR RFRIGERATINO PLANTS May 4 1926. y 1,583,156

l//l/l//J/ INVENTOR. Clarence E. (fe/yens,

v ATTORNEYJ May 4 1926.

C. E. JEFFERS COIPBESSOR FOR REFRIGERATING PLANTS Filed July 3.7 1924 3 Sheets-Sheet 5 INI/ENTOR,y

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A TTORNEYJ j Granier-rca n,

JEFFERS, F INDIANAPOLIS, NDIANA, ASSIGNOB; T0 MERVN V. ARNOLD, 0F EVANSVILLE, INDIANA.

CM'RESSOR FOB REFRIGERATING PLANTS.

Application filed July.17,`1924. Serial No. 726,427.

.lie it lvnox'n that l, Cinnamon E. Jnrifinzs, a eilig/.ce 'fri' flue United States, residing at ::l,'`i1.apoli in the county oi ltiarion and State ci" indiana, have invented a new and useful Compressor for leirigerating Plants, ofnvlliich they following` is a specilioation.

. The object of. my invention is to produce av neat, efficient and compact compressor forl said bearings is formed being provi-dedl with an oil cup 1-l`l`ying within casing 10.

Connected to oneend of shaft l'lis a suitable motor 15, and attached to the opposite end is a centrifugal fan 1G arranged within a. an housine,a 17 attached to "flange platel. Secured to shaft 11, wit-hin casingY 10, is a pinion 18' Vmeshing with a wrist-pin gear liavi a hub 20 iournaled in a bearing ring; fl'niounted in a perforation 22 in the side wall of casing 10, said perforation bei@ aofsuiiicient size to permit the withdrawal .of ,feagr 19. Gear 19 is held invring 21 by a 'plate which 1s perforated at 24e opposite :the end of an eccentric bore 25` in ,dear 19, in

which is joui-nailed the wrist pin 26 provided in. its outer end with a transverse bore 27, the shank' of the wrist pin beingaxially bored at 28 to form an oil passage between perforation 24 and bore 27 and transversely perforated. at 29 to provide an oil assage between bore 28 and bore 25. A p ate 30, secured over ring Q1 forms an oil-retaining chamber 32 communicating with perforation 2li.

Detachably secured to casing; 10 is a bar (Fifi. 1l having cars 36 projected into casing' 10 and carrying' a pin 37 upon which is mounted a walking-beam SS one end of which is Acylindricaland projected into bore 53'?" .it the wrist pin Q6. The other` shorter, end ot' wall ing-bearn 38 is bifurcated to receive the lower end of reciprocating-ro 3*.) pivoted thereto by pin 40.

The compressor cylinder 45 is carried by a flanged plate 416 scoured to the lopen upper end of an upwardly extending cylindrical portion 47 of the pump 'casing 48, and mounted in cylinder 45 is a compressor pistou 119 provided with a rigid, axially-bored piston"r'0d 50 which is formed at its lower end into an oil piston 51 mounted in an open-ended cylinder 52, formed in an oil sump 53 in the lower part of casing 48,-the lower end of the bore of rod 50 being' enlarged to form a valve chamber 54 partially closed at its lower end by' a seat ring .55 upon which is seated ay ball valve 5,6.

The lo`wer end of cylinder 52 is enlarged1 at 57 and projects `downwardly adjacent the' upper end of a seat post 5 on which rests a valve ring 59 centrally perforated at 60,

said ring having a' close but sliding fit with the enlargement 57 and bore 60 being of less diameter than the top of post 58,' the arrangement being such that ring 59 serves as a valve between the lower end of cylinder,

and the oil sump. Mounted in casing,1r 48,

at right angles tok piston rod50 and substantially parallel with the axis of pin 37, is a walking-beam L65, the longer arm of which is Cylindrical at its eind and projected through atrunnionipin 'G6 iournaled in piston rod 50 at anintermediate point in its length. Pin 66 is'prol.

vided near each end with an annular groove G7 (Fig. 1) lyinfr within thel width ofthe portions ot rod 50 in which the pin istrunnioned and these annular grooves. are oonnected by axial grooves 68, (topand bottom), thereby affording a communication between the upper and lower ends of the axial bore of rod 50 for the passage of lubricant.

For the purpose of forming a gas-tight connection between the interiors of caslngs'.

10 and 48, and at the same time affording a mechanical connection between the 'two walking-beams 38 and 65 oering a minimum resistance to movement, I provide the following construction:

Casing 10, immediately above the short arm of beam 38, is perforated at 70 and removably mounted in this perforation is a cup T1 havingf a central openingl 72 over which is rigidly mounted, as by soldering` or otherwise (as clearly shown in Fig. 3) the cylinder communicating therewith, a tubular piston rod connected at one end to said ptom a second piston connected to the other end of Said rod, an oil sump and cylinder in I' which said second piston is arranged, means vfor causing oil ow through said piston rod, a Walking-beam for driving said rod, and an oil guide carried by the easing in position to receive oil from the piston rod and guide 10 it to the Walking-benin hearings.

9. n a refrigerant compressor, a casingr havmgr a perforated side Wall, a perforated plate closing said perforatlon, a: gear havmg a huh journalledin said plate, a retaining@ plate attached to said hub and engaging the, l5 

